| Ubiquitin carboxyl-terminal hydrolase (EC 3.4.19.12) (Fragment) | UCHL1 | D6RF53 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 10 (Fragment) | USP10 | H3BNS8 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 11 (Ubiquitin specific peptidase 11, isoform CRA_b) | USP11 hCG_17279 | G5E9A6 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 15 (Fragment) | USP15 | H0YHM4 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 17 (USP17) (EC 3.4.19.12) (Deubiquitinating enzyme 17-like protein 2) (Deubiquitinating protein 3) (DUB-3) (Ubiquitin carboxyl-terminal hydrolase 17-like protein 2) (Ubiquitin thioesterase 17-like protein 2) (Ubiquitin-specific-processing protease 17-like protein 2) | USP17L2 DUB3 USP17 USP17H USP17I USP17J USP17K USP17L USP17M | Q6R6M4 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 17-like protein 24 (EC 3.4.19.12) (Deubiquitinating enzyme 17) (Ubiquitin thioesterase 17) (Ubiquitin-specific-processing protease 17) | USP17L24 USP17 USP17H USP17I USP17J USP17K USP17L USP17M; USP17L25; USP17L26; USP17L27; USP17L28; USP17L29; USP17L30 | Q0WX57 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 19 | USP19 | E7EST9 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 22 (EC 3.4.19.12) (Deubiquitinating enzyme 22) (Ubiquitin thioesterase 22) (Ubiquitin-specific-processing protease 22) | USP22 KIAA1063 USP3L | Q9UPT9 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 28 (EC 3.4.19.12) (Deubiquitinating enzyme 28) (Ubiquitin thioesterase 28) (Ubiquitin-specific-processing protease 28) | USP28 KIAA1515 | Q96RU2 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 28 (Fragment) | USP28 | H0YFT9 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 29 (EC 3.4.19.12) (Deubiquitinating enzyme 29) (Ubiquitin thioesterase 29) (Ubiquitin-specific-processing protease 29) | USP29 | Q9HBJ7 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 32 (Fragment) | USP32 | K7EKZ1 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 33 (EC 3.4.19.12) (Deubiquitinating enzyme 33) (Ubiquitin thioesterase 33) (Ubiquitin-specific-processing protease 33) (VHL-interacting deubiquitinating enzyme 1) (hVDU1) | USP33 KIAA1097 VDU1 | Q8TEY7 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 36 | USP36 | E9PEW0 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 36 (EC 3.4.19.12) (Deubiquitinating enzyme 36) (Ubiquitin thioesterase 36) (Ubiquitin-specific-processing protease 36) | USP36 KIAA1453 | Q9P275 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 38 (EC 3.4.19.12) (Deubiquitinating enzyme 38) (HP43.8KD) (Ubiquitin thioesterase 38) (Ubiquitin-specific-processing protease 38) | USP38 KIAA1891 | Q8NB14 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 40 | USP40 | C9JK14 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 44 (EC 3.4.19.12) (Deubiquitinating enzyme 44) (Ubiquitin thioesterase 44) (Ubiquitin-specific-processing protease 44) | USP44 | Q9H0E7 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 44 (Fragment) | USP44 | F8VRW0 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 44 (Fragment) | USP44 | F8VVD6 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 46 | USP46 | H7BZK6 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 48 (Fragment) | USP48 | E9PJ87 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 49 (EC 3.4.19.12) (Deubiquitinating enzyme 49) (Ubiquitin thioesterase 49) (Ubiquitin-specific-processing protease 49) | USP49 | Q70CQ1 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 51 (EC 3.4.19.12) (Deubiquitinating enzyme 51) (Ubiquitin thioesterase 51) (Ubiquitin-specific-processing protease 51) | USP51 | Q70EK9 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 7 | USP7 | F5H2X1 | 1 |
| Ubiquitin carboxyl-terminal hydrolase 7 (Fragment) | USP7 | H3BND8 | 1 |
| Ubiquitin carboxyl-terminal hydrolase CYLD | CYLD | J3KRR7 | 1 |
| Ubiquitin carboxyl-terminal hydrolase CYLD (EC 3.4.19.12) (Deubiquitinating enzyme CYLD) (Ubiquitin thioesterase CYLD) (Ubiquitin-specific-processing protease CYLD) | CYLD CYLD1 KIAA0849 HSPC057 | Q9NQC7 | 1 |
| Ubiquitin carboxyl-terminal hydrolase isozyme L3 (Fragment) | UCHL3 | Q5TBK7 | 1 |
| Ubiquitin carboxyl-terminal hydrolase MINDY-1 (Fragment) | MINDY1 | H0YJH5 | 1 |
| Ubiquitin conjugation factor E4 A (cDNA FLJ51394, highly similar to Ubiquitin conjugation factor E4 A) | UBE4A | B7Z7P0 | 1 |
| Ubiquitin fusion degradation 1 like (Yeast), isoform CRA_b (Ubiquitin fusion degradation 1 protein) (Ubiquitin fusion degradation 1-like) | ufd1 UFD1L hCG_17901 | Q541A5 | 1 |
| Ubiquitin specific peptidase 14 (TRNA-guanine transglycosylase), isoform CRA_a | USP14 hCG_1994849 | D3DUG9 | 1 |
| Ubiquitin specific peptidase 4 (Proto-oncogene) | USP4 | Q08AK7 | 1 |
| Ubiquitin specific peptidase 9, X-linked, isoform CRA_b | USP9X hCG_18381 | D3DWB6 | 1 |
| Ubiquitin thioesterase (EC 3.4.19.12) | DKFZp564E242 | Q659F9 | 1 |
| Ubiquitin-associated protein 2 | UBAP2 | F5H2U4 | 1 |
| Ubiquitin-associated protein 2-like (Fragment) | UBAP2L | Q5VU77 | 1 |
| Ubiquitin-associated protein 2-like (Protein NICE-4) | UBAP2L KIAA0144 NICE4 | Q9UGL5 | 1 |
| Ubiquitin-conjugating enzyme E2 B (EC 2.3.2.23) (E2 ubiquitin-conjugating enzyme B) (RAD6 homolog B) (HR6B) (hHR6B) (Ubiquitin carrier protein B) (Ubiquitin-conjugating enzyme E2-17 kDa) (Ubiquitin-protein ligase B) | UBE2B RAD6B | P63146 | 1 |
| Ubiquitin-conjugating enzyme E2 C (EC 2.3.2.23) ((E3-independent) E2 ubiquitin-conjugating enzyme C) (EC 2.3.2.24) (E2 ubiquitin-conjugating enzyme C) (UbcH10) (Ubiquitin carrier protein C) (Ubiquitin-protein ligase C) | UBE2C UBCH10 | A6NP33 | 1 |
| Ubiquitin-conjugating enzyme E2 D3 | UBE2D3 | D6R9F6 | 1 |
| Ubiquitin-conjugating enzyme E2 D3 (Fragment) | UBE2D3 | D6RA11 | 1 |
| Ubiquitin-conjugating enzyme E2 H (Fragment) | UBE2H | H7C4M9 | 1 |
| Ubiquitin-conjugating enzyme E2 J2 (EC 2.3.2.23) (E2 ubiquitin-conjugating enzyme J2) (Non-canonical ubiquitin-conjugating enzyme 2) (NCUBE-2) | UBE2J2 NCUBE2 | Q8N2K1 | 1 |
| Ubiquitin-conjugating enzyme E2 K (Fragment) | UBE2K | D6RDM7 | 1 |
| Ubiquitin-conjugating enzyme E2 L3 (EC 2.3.2.23) (E2 ubiquitin-conjugating enzyme L3) (L-UBC) (UbcH7) (Ubiquitin carrier protein L3) (Ubiquitin-conjugating enzyme E2-F1) (Ubiquitin-protein ligase L3) | UBE2L3 UBCE7 UBCH7 | B4DDG1 | 1 |
| Ubiquitin-conjugating enzyme E2 N | UBE2N | F8VQQ8 | 1 |
| Ubiquitin-conjugating enzyme E2 variant 2 (Fragment) | UBE2V2 | H0YBP9 | 1 |
| Ubiquitin-conjugating enzyme E2 variant 2 (Fragment) | UBE2V2 | E5RIF1 | 1 |
| Ubiquitin-conjugating enzyme E2 variant 2 (Ubiquitin-conjugating enzyme E2 variant 2, isoform CRA_b) (cDNA, FLJ93989, Homo sapiens ubiquitin-conjugating enzyme E2 variant 2 (UBE2V2),mRNA) | UBE2V2 hCG_1640505 | A0M8W4 | 1 |
| Ubiquitin-like modifier-activating enzyme 1 (Fragment) | UBA1 | Q5JRR9 | 1 |
| Ubiquitin-like modifier-activating enzyme 5 (Fragment) | UBA5 | C9J0F6 | 1 |
| Ubiquitin-like modifier-activating enzyme ATG7 (ATG12-activating enzyme E1 ATG7) (Autophagy-related protein 7) (APG7-like) (hAGP7) (Ubiquitin-activating enzyme E1-like protein) | ATG7 APG7L | B4E170 | 1 |
| Ubiquitin-like modifier-activating enzyme ATG7 (Fragment) | ATG7 | H7C059 | 1 |
| Ubiquitin-like protein ISG15 (Fragment) | ISG15 | A0A096LNZ9 | 1 |
| Ubiquitin-specific protease 7 isoform (Fragment) | 0 | Q6U8A4 | 1 |
| Ubiquitinyl hydrolase 1 (EC 3.4.19.12) | USP44 | F8VRI7 | 1 |
| UBX domain-containing protein 1 | UBXN1 | A0A087WTZ5 | 1 |
| UBX domain-containing protein 10 (UBX domain-containing protein 3) | UBXN10 UBXD3 | Q96LJ8 | 1 |
| UBX domain-containing protein 2B (NSFL1 cofactor p37) (p97 cofactor p37) | UBXN2B | Q14CS0 | 1 |
| UBX domain-containing protein 8 (Fragment) | UBXN8 | A0A087X0J2 | 1 |
| UDP-glucose 4-epimerase (Fragment) | GALE | Q5QPP4 | 1 |
| UDP-glucose 4-epimerase (Fragment) | GALE | Q5QPP1 | 1 |
| UDP-glucose 4-epimerase (Fragment) | GALE | Q5QPP9 | 1 |
| UDP-glucose 6-dehydrogenase | UGDH | E9PBD2 | 1 |
| UDP-glucose 6-dehydrogenase (UDP-Glc dehydrogenase) (UDP-GlcDH) (UDPGDH) (EC 1.1.1.22) | UGDH | B4DN25 | 1 |
| UDP-glucose:glycoprotein glucosyltransferase 1 | UGGT1 | E2QRN8 | 1 |
| UDP-glucose:glycoprotein glucosyltransferase 2 | UGGT2 | A6NP03 | 1 |
| UDP-glucuronic acid decarboxylase 1 (Fragment) | UXS1 | C9JCB7 | 1 |
| UDP-glucuronic acid decarboxylase 1 (Fragment) | UXS1 | C9JE50 | 1 |
| UDP-glucuronic acid/UDP-N-acetylgalactosamine transporter (UDP-GlcA/UDP-GalNAc transporter) (Solute carrier family 35 member D1) (UDP-galactose transporter-related protein 7) (UGTrel7) | SLC35D1 KIAA0260 UGTREL7 | Q9NTN3 | 1 |
| UDP-glucuronosyltransferase 1-4 (UDPGT 1-4) (UGT1*4) (UGT1-04) (UGT1.4) (EC 2.4.1.17) (Bilirubin-specific UDPGT isozyme 2) (hUG-BR2) (UDP-glucuronosyltransferase 1-D) (UGT-1D) (UGT1D) (UDP-glucuronosyltransferase 1A4) | UGT1A4 GNT1 UGT1 | P22310 | 1 |
| UDP-glucuronosyltransferase 1-8 (UDPGT 1-8) (UGT1*8) (UGT1-08) (UGT1.8) (EC 2.4.1.17) (UDP-glucuronosyltransferase 1-H) (UGT-1H) (UGT1H) (UDP-glucuronosyltransferase 1A8) | UGT1A8 GNT1 UGT1 | Q9HAW9 | 1 |
| UDP-glucuronosyltransferase 2A3 (UDPGT 2A3) (EC 2.4.1.17) | UGT2A3 UNQ2559/PRO6239 | Q6UWM9 | 1 |
| UDP-glucuronosyltransferase 3A2 (UDPGT 3A2) (EC 2.4.1.17) | UGT3A2 PSEC0073 UNQ842/PRO1780 | Q3SY77 | 1 |
| UDP-N-acetylglucosamine/UDP-glucose/GDP-mannose transporter (Homolog of Fringe connection protein 1) (HFRC1) (SQV7-like protein) (SQV7L) (Solute carrier family 35 member D2) (UDP-galactose transporter-related protein 8) (UGTrel8) | SLC35D2 HFRC UGTREL8 | Q76EJ3 | 1 |
| UG0315G03 | 0 | Q8IXG5 | 1 |
| UGa8H (Fragment) | IGHV | A2KUC3 | 1 |
| ULIP (Fragment) | ULIP | Q9NR93 | 1 |
| Uncharacterized aarF domain-containing protein kinase 5 | ADCK5 | R4GN53 | 1 |
| Uncharacterized aarF domain-containing protein kinase 5 (EC 2.7.11.-) | ADCK5 | Q3MIX3 | 1 |
| Uncharacterized membrane protein C3orf80 | C3orf80 | F5H4A9 | 1 |
| Uncharacterized protein | 0 | Q6GMW6 | 1 |
| Uncharacterized protein | LOC402299 tcag7.1260 | A4D1P0 | 1 |
| Uncharacterized protein | RP5-1022P6.2 hCG_39118 | D3DW07 | 1 |
| Uncharacterized protein | LOC100996720 | A0A0D9SF21 | 1 |
| Uncharacterized protein | 0 | K7EK78 | 1 |
| Uncharacterized protein | LOC102723996 | A0A087X1L8 | 1 |
| Uncharacterized protein | 0 | F8VWA3 | 1 |
| Uncharacterized protein | 0 | G3V318 | 1 |
| Uncharacterized protein | 0 | F8VNQ1 | 1 |
| Uncharacterized protein | 0 | M0QZU9 | 1 |
| Uncharacterized protein | 0 | Q14569 | 1 |
| Uncharacterized protein | 0 | H0YC42 | 1 |
| Uncharacterized protein | 0 | M0R2N4 | 1 |
| Uncharacterized protein (Fragment) | 0 | H0YJ60 | 1 |
| Uncharacterized protein (Fragment) | LOC81691 | H3BM72 | 1 |
| Uncharacterized protein (Fragment) | 0 | H0YIV9 | 1 |
| Uncharacterized protein (Fragment) | 0 | M0R0L4 | 1 |